Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminium Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined from milspec-anodized aluminium, M-LOK Rail Sections also feature bevelled ends to reduce snagging and eliminate sharp corners and edges. All hardware necessary for attachment directly to M-LOK Slots on either aluminium or polymer hand guards and forends is included. 5 Slots, max overall length of 2.5".